Abner Fizzletorque at Fizzcrank Airstrip wants you to use the Shake-n-Quake 5000 to collapse the Nerubian tunnels and defeat Lord Kryxix.
1x Deploy the Shake-n-Quake 5000
Behold, the machine that will save us from the Nerubian threat!
<Abner beams with pride as he presents the finished bot.>
Take this remote control with you, and go out to the southernmost of the Nerubian sinkholes in the Geyser Fields. Use the remote to activate the Shake-n-Quake 5000. It will do the rest on its own.
Don't be surprised if the quake it creates attracts the attention of a Nerubian leader. In fact, it would be a great opportunity to finish off the Nerubian offensive.